Revert of Allow $TMPDIR to set temporary directory on OS X.

Revert of Allow $TMPDIR to set temporary directory on OS X. (patchset #8 id:140001 of https://codereview.chromium.org/2713293002/ )

Reason for revert:
Looks like this broke mac compile https://build.chromium.org/p/chromium/buildstatus?builder=Mac&number=24213

Original issue's description:
> Allow $TMPDIR to set temporary directory on OS X.
> 
> This allows the continuous integration builds to be more hermetic by
> supplying a managed value for $TMPDIR and having chromium + tests respect
> it.
> 
> NSTemporaryDirectory takes its value directly from a non-overridable
> confstr(_CS_DARWIN_USER_TEMP_DIR) call internally. This CL brings OS X
> more in line with Windows and Linux which both respect an environment
> variable ($TEMP and $TMPDIR respectively).
> 
> BUG=696803
> 
> Review-Url: https://codereview.chromium.org/2713293002
> Cr-Commit-Position: refs/heads/master@{#453835}
> Committed: https://chromium.googlesource.com/chromium/src/+/7b5db573b3ebbc32ee4608163b9ba7e68750ee9a

TBR=lambroslambrou@chromium.org,jam@chromium.org,maruel@chromium.org,mark@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=696803
Review-Url: https://codereview.chromium.org/2724733002
Cr-Commit-Position: refs/heads/master@{#453841}
Committed: https://chromium.googlesource.com/chromium/src/+/cedd448c905837fc74d0b793305733da3c88e900

[iannucci, 2017-03-01 04:44:08]

The CQ bit was checked by iannucci@chromium.org

[iannucci, 2017-03-01 04:44:09]

Created Revert of Allow $TMPDIR to set temporary directory on OS X.

[commit-bot: I haz the power, 2017-03-01 04:44:25]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-03-01 04:45:03]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1488343448829080, "parent_rev":
"055e9b912a667a19f4d8420b755fec9c7190302b", "commit_rev":
"cedd448c905837fc74d0b793305733da3c88e900"}

[commit-bot: I haz the power, 2017-03-01 04:46:26]

Description was changed from

==========
Revert of Allow $TMPDIR to set temporary directory on OS X. (patchset #8
id:140001 of https://codereview.chromium.org/2713293002/ )

Reason for revert:
Looks like this broke mac compile
https://build.chromium.org/p/chromium/buildstatus?builder=Mac&number=24213

Original issue's description:
> Allow $TMPDIR to set temporary directory on OS X.
> 
> This allows the continuous integration builds to be more hermetic by
> supplying a managed value for $TMPDIR and having chromium + tests respect
> it.
> 
> NSTemporaryDirectory takes its value directly from a non-overridable
> confstr(_CS_DARWIN_USER_TEMP_DIR) call internally. This CL brings OS X
> more in line with Windows and Linux which both respect an environment
> variable ($TEMP and $TMPDIR respectively).
> 
> BUG=696803
> 
> Review-Url: https://codereview.chromium.org/2713293002
> Cr-Commit-Position: refs/heads/master@{#453835}
> Committed:
https://chromium.googlesource.com/chromium/src/+/7b5db573b3ebbc32ee4608163b9b...

TBR=lambroslambrou@chromium.org,jam@chromium.org,maruel@chromium.org,mark@chr...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=696803
==========

to

==========
Revert of Allow $TMPDIR to set temporary directory on OS X. (patchset #8
id:140001 of https://codereview.chromium.org/2713293002/ )

Reason for revert:
Looks like this broke mac compile
https://build.chromium.org/p/chromium/buildstatus?builder=Mac&number=24213

Original issue's description:
> Allow $TMPDIR to set temporary directory on OS X.
> 
> This allows the continuous integration builds to be more hermetic by
> supplying a managed value for $TMPDIR and having chromium + tests respect
> it.
> 
> NSTemporaryDirectory takes its value directly from a non-overridable
> confstr(_CS_DARWIN_USER_TEMP_DIR) call internally. This CL brings OS X
> more in line with Windows and Linux which both respect an environment
> variable ($TEMP and $TMPDIR respectively).
> 
> BUG=696803
> 
> Review-Url: https://codereview.chromium.org/2713293002
> Cr-Commit-Position: refs/heads/master@{#453835}
> Committed:
https://chromium.googlesource.com/chromium/src/+/7b5db573b3ebbc32ee4608163b9b...

TBR=lambroslambrou@chromium.org,jam@chromium.org,maruel@chromium.org,mark@chr...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=696803

Review-Url: https://codereview.chromium.org/2724733002
Cr-Commit-Position: refs/heads/master@{#453841}
Committed:
https://chromium.googlesource.com/chromium/src/+/cedd448c905837fc74d0b7933057...
==========

[commit-bot: I haz the power, 2017-03-01 04:46:27]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/cedd448c905837fc74d0b7933057...